Machine for finishing skewers.



A. T. TRUE.

MACHINE FOR FINISHING SKBWBRS.

APPLIOATION FILED DEG. 29,1909.

Patented Sept. 20, 1910.

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A. T. TRUE.

MACHINE FOB. FINISHING SKBWERS.

APPLICATION FILED DEO.29,1909.

970,667. I Patented Sept. 20, 1910.

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STRONG, MAINE.

MACHINE FOR FINISHING SKEWERS.

Specification of Letters Patent.

Application filed December 29, 1909.

Patented Sept. 20, 1910.

Serial No. 535,475.

To all whom it may cancer-"or Be it known that I, AMos T. TRUE, acitizen of the United States, resident of Strong, in the county ofFranklin and State of Maine, have made a certain new and usefulInvention in Machines for Finishing Skewers; and I declare the followingto be a full, clear, and exact description of the same, such as willenable others skilled in the art to which it appertains to make and usethe invention, reference being had to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthis specification.

Figure 1 is a front view of my skewer machine. Fi 2 is a rear view ofthe same. Fig. 3 is a section on the line 3-3, Fig. 1. Fig. 4 is adetail sectional view on the line l-4, Fig. 3. Fig. 5 is a detail sideView of one of the cutter or sharpener wheels. Fig. 6 is a detail sideview of one of the two rough surfaced wheels upon the countershaft.

The invention has relation to machines for finishing skewers, having forits object the provision of an improved machine which will sharpen thepoints of the skewers and round the butts thereof in a simple, efficientand expeditious manner.

Other ob 'ects and advantages will hereinafter appear. i

The invention consists in the novel construction and combinations ofparts as here inafter set forth.

In the accompanying drawings, illustrating the invention, the letter a,designates a supporting frame carrying at its upper portion a horizontalshaft b, having a driving connection 0, with a counter-shaft (L, at thelower portion of said frame.

Located about centrally of the driven shaft l), and fast thereupon, aretwo wheels 6, 6, preferably of metal, such as iron, and separated fromeach other by an interval in which is located a loose pulley f. Belowthese wheels and pulley at one side of the machine is the hopper g, forthe blank skewers to be sharpened or finished. The loose pulley f,carries an endless belt h,passing around a loose pulley located belowthe hopper, said belt running upward from the central portion of thehopper and being novided with a series of transverse lagging strips 70,1 6, preferably of steel, securedthercto, each strip being separatedfrom its neighbor by an interval Z, of such size as to receive therein asingle skewer. The loose pulley 7, is a little smaller in diameter thanthe wheels 0, e, thus allowing the belt to drop a little below or withinthe surface of said wheels and the skewers to rest upon the wheels 0, e.

The endless belt It, is caused to move upward. from the hopper aroundthe upper portion of the loose pulley f", by engagement of projectingend portions of the skewers, the central portions of which are locatedin the intervals between the steel lagging strips of the belt, with theroughened or file surfaced peripheral walls 0, 0, of the positivelydriven metal wheels 0, e,that is to say when the machine is started theskewercarrying belt is caused to move by hand until the skewers arethereby raised into e gagement with the roughened peripheral surfaces ofthe wheels 0, 6, when an operating connection will be establishedbetween the wheels 6, 0, and the skewer-carrying belt by engagement ofthe skewers with such wheels. These wheels 6, 0, being positively driventhe operation thereafter of the skewer-carrying belt will be continuousand incidentally the skewer blanks will be effectually caused to turn intheir seats in the belt by the stationary straps hereinafter describedpressing the skewer blanks against such wheels. The pulley f, is aboutone third as wide as the skewer is long and said wheels are of suchnarrow width as to leave the point and butt portions of the skewersprojecting therefrom at each side. The movement of the belt beingstarted in the manner stated, the movement of the skewer blanks in thespaces between the lagging strips of the belt, upward from the hopper,will be controlled and governed as to speed by movement of the shaft 1),and its wheels 0, 6. These stationary straps p, p, preferably ofleather, are secured at one end thereof to a frame strip 0, and passupward over the wheels 6, c, and down at the opposite side of themachine, where they are secured at their ends to a suspended strip 8, a.strong spiral spring t, having a bearing at its upper end against theframe at t, pressing down against the suspended strip between the twostraps and acting to exert a strong pressure thereupon. The tension ofthis spring may be adjusted as required by movement of the nut t uponthe rod t, which runs through the spring and the strip 8.

The skewers are pointed by a cutter wheel a, upon theshaft 7), saidcutter wheel having inclined knives u, a, (four as shown) which runwithin the projecting end portions of the skewers and gradually shapethem to a long tapered point, being assisted or enabled to accomplishthe desired result by the rotation of the skewers in their seats. Thebutt portions of the skewers are rounded by a cutter wheel 4), alsoshown as upon the shaft Z), and having a series of inclined knivessuitably ground.

The carton or box to receive the finished skewers and 'in which they arepacked for the market, is supported upon a table to, at the side of themachine opposite to the box containing the blank skewers to besharpened, located in the recess beneath the inclined belt in positionto receive the finished skewers as they fall from their seats therein,the belt being partly reversed owing to its inclination. This table issupported by a bell crank lever or angle arm to, and being capable of ahorizontal vibratory movement,

through engagement of an arm of said lever with a slot as of aneccentric strap 00, carried by an eccentric of the countershaftd. Thefinished skewers, which are automatically discharged from the belt intothe packing box or carton, are thus caused to automatically settlecompactly in the carton, saving time and dispensing with hand packing.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a machine for finishing skewers, a

- hopper, a rotary shaft carrying a loose pulley, an endlessskewer-carrying belt passing over said pulley, said belt forming thebottom of said hopper and having an endless series of transverseprojections separated from each other by intervals, lateral wheels fastupon said shaft at each side of said loose pulley and provided withroughened peripheral surfaces, stationary flexible straps passing aroundsaid lateral wheels and having a tension device at one end thereof, anda sharpener wheel for the skewer points adjacent to one of said lateralwheels.

2. In a machine for finishing skewers, a hopper, a rotary driven shaftcarrying a loose pulley, an endless inclined skewer-carrying beltpassing over said pulley, said belt forming the bottom of said hopperand having an endless series of transverse projections separated fromeach other by intervals, said belt having engagement with a pulleylocated below said hopper, lateral wheels fast upon said shaft at eachside of said loose pulley, and provided with roughened peripheralsurfaces, stationary flexible straps passing around said lateral wheelsand having a tension device at one end thereof, a sharpener wheel forthe skewer points adjacent to oneof said lateral wheels, a roundingcutter wheel for the skewer butts adjacent to the other of said lateralwheels,

a vibratory table below said carrying belt I l and located in the recessbeneath one in- I clined side thereof in position to receive thefinished skewers as they fall from the carrying belt, and means table.

ture, in presence of two witnesses.

AMOS T. TRUE. Witnesses:

Jos. C. HoLMAN, CURRIER C. HOLMAN.

for vibrating said I In testimony whereof I ailiX my signa- I

